Gas and liquid contact apparatus – Fluid distribution – Pumping
Patent
1978-08-07
1980-02-26
Jenkins, Robert W.
Gas and liquid contact apparatus
Fluid distribution
Pumping
366144, 366165, 366171, B01F 716, B01F 1506
Patent
active
041906179
ABSTRACT:
A mixing and pumping system of high efficiency ideally suited for supplying chemical solutions to automatic film developing machines, which supplies the required intimately and uniformly blended mixture of replenishing chemicals, without objectionable exposure to air, and even though these fluids may be inherently difficult to mix, which system generally comprises a cylindrical chamber having near one end a rotating impeller, and an inner cylinder concentric with the chamber which extends to the end of the chamber remote from the impeller and which defines an opening with the chamber at the end nearest the impeller. Fluids are introduced into the annular space separating the inner cylinder and the chamber, the impeller is rotated to alter the fluids at least in the region of the impeller, and the mixed fluids are then passed from within the inner cylinder to the outside of the system.
In automatic film developing machines, the treatment tanks have to be replenished with mixtures of film treatment fluids as these fluids are used up by processing of the films in the machine. The system supplies fresh mixtures as required, directly from separate sources of the mixture ingredients.
The system has wide applications in various industries wherever mixing of fluids is desired.
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Hope Henry F.
Hope Stephen F.
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